This article compares two approaches side by side to clarify how they differ in principle and practice. Transarterial approaches also include transarterial radioembolization (TARE) and other targeted therapies delivered through dedicated microcatheters, always as determined by the treating interventional team. As a medical device manufacturer, INVAMED develops technologies in this area; the information here is educational and not medical advice.
Background: Endovascular Embolization
Because embolization is generally intended to be permanent, careful vessel selection and sizing are emphasized so that only the intended territory is occluded. Transarterial approaches also include transarterial radioembolization (TARE) and other targeted therapies delivered through dedicated microcatheters, always as determined by the treating interventional team. The occluding agents fall into families such as detachable coils, vascular plugs, liquid embolic agents, and particles, each with a different mechanism of vessel closure.
Particles vs Coils: Key Differences
Particle embolization occludes flow at the level of small distal vessels, which suits applications such as tumor devascularization, whereas coils occlude larger, more proximal vessels. Particles are distributed with the blood flow to a capillary-level territory, while coils create a defined, localized occlusion. The two are sometimes used together in a staged strategy, with proximal coils and distal particle or liquid embolization, as decided by the operator. Agent selection depends on the desired level of occlusion within the vascular tree and is determined by the interventionalist.
How INVAMED Supports Both Approaches
INVAMED organizes its embolization portfolio around the mechanism of occlusion, offering detachable and pushable coils, a fiber-filled vascular plug, dedicated delivery catheters, a flow-modulating device, and a non-adhesive liquid agent. Each device is intended for use by trained interventionalists under imaging guidance and per the IFU. Procurement teams should confirm local regulatory registration and approved indications, which vary by market and device configuration. INVAMED's embolization portfolio includes the Spider Peripheral Detachable Coil System (detachable and pushable), the fiber-filled MultiBEAM Embolization Plug, the Pars Detachable and MicroDELIVERY Embolization Catheters, the Stena Multi-Layer Flow Modulator, and the cross-listed Libro Non-Adhesive Embolization Agent.
Key Considerations
- All INVAMED embolization devices are intended for use by trained interventionalists under imaging guidance and in accordance with the IFU.
- Detachable designs allow the operator to confirm position before committing, which can be valuable near sensitive branches.
- Catheter and microcatheter compatibility with the chosen coil, plug, or agent is confirmed before delivery to support controlled deployment.
Frequently Asked Questions
What vessel sizes can the MultiBEAM plug occlude?
According to its product page, the MultiBEAM Embolization Plug is suitable for occlusion of arteries from 2.6 to 6.2 mm, is offered in 4 to 16 mm diameters, and is delivered through a 4F or 5F catheter.
Is embolization permanent?
Embolization is generally intended to be permanent with coils, plugs, and solidifying liquids, though some particle agents are more temporary; the expected durability is discussed with the treating physician.
Is embolization a substitute for surgery?
INVAMED's MultiBEAM product page states the transcatheter plug "provides great benefit instead of surgical treatment in suitable patients" with reportedly high success and low complication rates, but suitability is always a clinical determination.
About INVAMED
Device availability and regulatory status vary by country. Please contact INVAMED or your authorized local distributor for current regulatory information applicable to your region.
Clinical and Technical Context
Aneurysm morphology, neck anatomy, and adjacent branches all influence the strategy chosen by the interventionalist. Manufacturer statements about INVAMED devices, including comparative claims on the MultiBEAM product page, reflect the company's positioning rather than guaranteed individual outcomes. Catheter selection is guided by the target anatomy and by the delivery requirements of the specific embolic being used. Because embolization is usually intended to be permanent, precise vessel selection and sizing are emphasized so that only the intended territory is occluded.
Related on INVAMED
- Embolization — product category
- Stena Multi-Layer Flow Modulator (Peripheral) / Stena Stent Flow Modulator Embolization Device: Features, Specifications and Clinical Role
- Understanding Coil Embolization of Aneurysms
- What is a liquid embolic agent (EVOH or NBCA)?
Important Disclaimer
The information here is provided for educational purposes and to describe device technology; it is not a substitute for professional medical advice, diagnosis, or treatment. Only a licensed healthcare provider can determine whether a given procedure or device is appropriate for a specific patient. INVAMED products are restricted to use by qualified professionals following the official IFU. Regulatory clearance and labeling differ between regions, and not all products or indications are available in every market.
Reviewed by the INVAMED Medical Affairs team. Content is educational and technical in nature.